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Method and apparatus for manufacturing tube-shaped packages made of flexible material

Inactive Publication Date: 2006-12-05
BP EUROPACK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0013]The aim of the present invention is to eliminate these drawbacks and to provide a method which allows to manufacture packages with a reinforced bottom in a simple and easy manner.
[0014]Within this aim, an object of the present invention is to provide a method which allows to use an apparatus which is in-line with respect to the filling station or directly after the formation of the bag.

Problems solved by technology

All these conventional packages suffer some drawbacks and in particular:producing their bottom is a rather labour-intensive task;their stability is unreliable;they lose their shape when the product is introduced;they adopt shapes which are poorly suited to space optimization (transport, shelves).

Method used

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  • Method and apparatus for manufacturing tube-shaped packages made of flexible material
  • Method and apparatus for manufacturing tube-shaped packages made of flexible material
  • Method and apparatus for manufacturing tube-shaped packages made of flexible material

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Embodiment Construction

[0022]As shown by the figures, the method according to the invention uses an apparatus which is arranged downstream of a conventional forming or packaging machine (not shown in the drawings) of the vertical type, of which only the final filler tube 2 has been shown. The tube is square in the illustrated example, but it can also be circular, elliptical, etcetera.

[0023]In particular, the apparatus comprises an inner element 4 which has the same shape as the tube and can move vertically by means of conventional devices which are not part of the invention. The inner element is located inside the tube 2 and is provided, at its lower end, with a collar 6 whose external dimensions substantially correspond to those of the tube 2.

[0024]A plunger 8 is provided so as to face the inner element 4 coaxially and has the same cross-section as the collar but smaller dimensions.

[0025]Two pairs of heat-sealing bars 10 are provided to the sides of the apparatus and can move toward and away from the app...

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Abstract

Method for manufacturing a tube-shaped package having longitudinal sides and a bottom and made of flexible material, wherein the longitudinal sides of the package are sealed prior to forming the bottom and the bottom is formed by pushing an annular portion of the flexible material inward in a U-shaped arrangement at at least on closed end of the tube-shaped package.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This is a National Stage of PCT / EP99 / 03709, filed May 28, 1999 which claims priority to Italian Application Serial No. VE98A000023 filed Jun. 4, 1998, the disclosure of which is incorporated herein by reference.[0002]1. Technical Field[0003]The present invention relates to a method for manufacturing tube-shaped packages made of flexible material, to an apparatus for carrying out the method and to a package obtained thereby.[0004]2. Background Art[0005]Packages (containers) made of flexible material and used to contain coffee, biscuits and tea bags are known. In order to have a certain stability, these packages have a reinforced bottom produced by heat-sealing a preformed portion made of rigid material.[0006]Packages having a square bottom obtained by folding a continuous strip are also known.[0007]Packages are also known which have lateral reinforcements arranged on the inside or on the outside of the side walls, again with the aim of ens...

Claims

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Application Information

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IPC IPC(8): B31C5/00B65B9/00B31B29/00B62M6/40B65B9/20B65B9/213B65B61/24B65D33/02
CPCB29C66/3452B29C66/63B31B29/00B62M6/40B65B9/2035B65B9/2049B65B9/213B65B61/24B29C66/24244B29L2031/7128B31B2221/20B31B2221/407B65B9/2056B65B2220/12B29C65/00B29C65/08B29C65/10B29C65/16B29C65/38B29C65/02B31B2150/00B31B2160/20B31B2150/0016B29C65/7847B29C66/1122B29C66/135B29C66/43121B29C66/4326B29C66/49B29C66/81463B29C66/843B29C66/8432B29C66/431B29C66/8221B29C66/8324B31B2150/003
Inventor VISONA', SERGIOTRANI, GIORGIOSTERNER, MARION
Owner BP EUROPACK
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